#onThisDay in 1994 #ZeroHour CrisisInTime #comics #4 began @dc.com #SummerEventCrossover #countingDownWeekly to issue #0 #HalJordan as #Parallax’s #DCUniverse remakeAttempt results in return of #Batgirl #TheJSA85 reaching #oldAge the multiple #Hawkman entities merged + a #LegionOfSuperHeroes reboot